What is the solution to the equation (picture)?

The solution of the equation is 15

Step-by-step explanation:

* Lets explain how to solve the problem

- The equation is 3(2x + 5) = 3x + 4x

- The solution of the equation is the value of x

Lets find the value of x

- The left hand side is 3(2x + 5) lets simplify it

- Multiply the two terms of the bracket by 3

∵ 3(2x+ 5) = 3 × 2x + 3 × 5

∴ 3(2x + 5) = 6x + 15

- The right hand side is 3x + 4x

∵ They are like terms, then we will add them

∴ 3x + 4x = 7x

- Now equate the left hand side and the right hand side

∴ 6x + 15 = 7x

- Subtract 6x from the two sides

∴ 15 = 7x - 6x

∴ x = 15

∵ x is the solution of the equation

∴ The solution of the equation is 15

step-by-step explanation: